Remove ChromeBrowserProvider::RegisterProfilePrefs().

ios/chrome/browser/ui/bookmarks/bookmark_home_view_controller_unittest.mm

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/mac/scoped_nsobject.h"
 #include "components/bookmarks/browser/bookmark_model.h"
-#include "components/sync_preferences/testing_pref_service_syncable.h"
 #import "ios/chrome/browser/browser_state/test_chrome_browser_state.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_home_handset_view_controller.h"
 #include "ios/chrome/browser/ui/bookmarks/bookmark_ios_unittest.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_promo_controller.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_utils_ios.h"
 
 using bookmarks::BookmarkNode;
 
 // A partial mock subclass that doesn't load any heavy weight subclasses.
 @interface MockBookmarkHomeHandsetViewController
@@ skipping 13 matching lines @@
 - (void)ensureAllViewExists {
   // Do nothing.
 }
 - (void)loadImageService {
   // Do nothing.
 }
 @end
 
 namespace {
 
-class BookmarkHomeViewControllerTest : public BookmarkIOSUnitTest {
- public:
-  void SetUp() override {
-    BookmarkIOSUnitTest::SetUp();
-    sync_preferences::TestingPrefServiceSyncable* pref =
-        chrome_browser_state_->GetTestingPrefService();
-    [BookmarkPromoController registerBrowserStatePrefs:pref->registry()];
-  }
-};
+using BookmarkHomeViewControllerTest = BookmarkIOSUnitTest;
 
 TEST_F(BookmarkHomeViewControllerTest, DeleteNodesUpdatesEditNodes) {
   const BookmarkNode* mobileNode = _bookmarkModel->mobile_node();
   const BookmarkNode* f1 = AddFolder(mobileNode, @"f1");
   const BookmarkNode* a = AddBookmark(mobileNode, @"a");
   const BookmarkNode* b = AddBookmark(mobileNode, @"b");
   const BookmarkNode* f2 = AddFolder(mobileNode, @"f2");
 
   const BookmarkNode* f1a = AddBookmark(f1, @"f1a");
   AddBookmark(f1, @"f1b");
@@ skipping 20 matching lines @@
   bookmark_utils_ios::DeleteBookmarks(toDelete, _bookmarkModel);
 
   // After the deletion, only 'a' and 'f2' should be left.
   std::set<const BookmarkNode*> editingNodes = [controller editNodes];
   EXPECT_EQ(editingNodes.size(), 2u);
   EXPECT_TRUE(editingNodes.find(a) != editingNodes.end());
   EXPECT_TRUE(editingNodes.find(f2) != editingNodes.end());
 }
 
 }  // anonymous namespace